State and explain two adaptations of a red blood cell?
Red blood cells have a biconcave disk shape, meaning that it increases their surface area and allows for more rapid diffusion of oxygen into and out of the cell.
Red blood cells do not have a nucleus so they can contain more haemoglobin, this is what combines with oxygen to form oxyhaemoglobin and so the fact that red blood cells do not contain a nucleus means that they can maximise their oxygen carrying capacity.
JD
Related Biology GCSE answers
All answers ▸How do blood vessels control body temperature?
Describe how insulin returns the blood glucose concentration to normal.
Explain how the use of antibiotics might lead to a resistant strain of bacteria arising.
Describe how different environmental factors affect the direction of growth of roots and the direction of growth of shoots.